Hanger for grindstones.



PATENTED AUG. 30 1904. M. DELGOPF.

HANGER FOR GRINDSTONES.

APPLIOATIOK IILED DBO. 18, 1903.

N0 MODEL.

v INVENTOR.

ATTORNEY;

VV-ITNESSES:

UNITED STATES Patented August 30, 1904.

PATENT OFFICE. I

HANGER FOR GRINDSTONES- SPECIFICATION forming part of Letters Patent No. 768,895, dated August 30, 1904.

Application filed December I8, 1903. Serial No. 185,761. (No model.)

To all whom it may concern:

Be it known that I, MARY DELGOFF, a citizen of the United States, residing at the city of Menominee, in the county of Menominee and State of Michigan, have invented a new and Improved Hanger for Grindstones, of which the following is a specification.

My invention relates to improvements in hangers for grindstones in which four adjustable clasps operate in conjunction with a collar and nut and a spindle with detachable flange the utile surface of which is at right angles to the spindle; and the object of my invention is to provide a means by which a grindstone may be quickly hung upon its arbor and at the same time hung upon its true center and in a perfect right angle to its arbor. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure l is a perspective section of the entire machine; Fig. 2, a detailed view in perspective of the clasps, of which there are four; Fig. 3, a detailed view in perspective of the collar; Fig. 4, a view in perspective of the spindle.

Similar letters refer to similar parts throughout the several views.

The grindstone F is of the ordinary character and is provided with the usual rectangular eye E, and the hanging device for the stone consists of four clasps, which are preferably made of metal, A A A A, and are provided on one end with rectangular shoulders D D D D and on the other end with a hook; a collar H, which is provided on its outer surface with four openings at equal distances from each other; a nut G, and a spindle B, having a flange A, the utile surface of which is at right angles to the spindle B, and a thread H, cut at a place where when tightening the device the nut G will operate upon it. All the parts of the hanging device are preferably made of metal.

In applying this invention the stone F is placed squarely against the flange A," attached to the spindle B, the rectangular shoulders D D D D of the four clasps A A A A are placed one in each corner of the rectangular eye E of the stone F, the hook at other end of each of the clasps A A A A is placed in one of the openings in the collar J, and the entire device tightened by the nut G. This I process forces the stone F into a position in which'every point of its circumference, if a true wheel, is equidistant from the center of the spindle B and in which it is at a perfect right angle to the spindle B and held rigidly into place and is accomplished'more easily and quickly than any other known process of hanging grindstones.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent In a hanger for grinds'tones a shaft provided with a flange and screw-threads, in combination with a collar provided with openings, four detachable clasps each provided with a hook on one end and a shoulder at the other, said hooks engaging the openings in the collar and a nut,'substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MARY DELGOFF.

Witnesses:

EDMOND VALc WM. SOMERVILLE. 

